<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<!-- 
	Copyright (C) 2007, 2008, 2009, 2010, 2011. PARP Research Group.
	<http://perception.inf.um.es>
	University of Murcia, Spain.

	This file is part of the QVision library.

	QVision is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as
	published by the Free Software Foundation, version 3 of the License.

	QVision is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public
	License along with QVision. If not, see <http://www.gnu.org/licenses/>.
-->

<html><head><meta http-equiv="content-Type" content="text/html;charset=UTF-8">
<title>QVision: Qt&#39;s Image, Video and Computer Vision Library</title>
<meta name="title" content="QVision" />
<meta name="dc.title" content="QVision" />
<meta name="url" content="http://perception.inf.um.es/QVision" />
<meta name="author" content="PARP Research Group - http://perception.inf.um.es" />
<meta name="revisit-after" content="30 DAYS"/>
<meta name="robots" content="index,follow"/>
<meta name="classification" content="*">
<meta name="rating" content="Safe For Kids">
<meta name="distribution" content="GLOBAL"/>
<meta name="description" content="Qt's Image, Video and Computer Vision Library"/>
<meta name="page-topic" content="Computer Vision research and prototype programming"/>
<meta name="geo.country" content="ES" />

<!--
Keywords:
By license:		open source, gnu, lgpl, gpl, free
By theme:		computer vision, image processing, robotics, programming, source, development
By usage:		library, toolkit, framework, prototype, application
By programming specs:	object oriented, c++, block programming, reusability, gui, graphical, parallel computing, high performance, GPU, prototyping
Interoperability with:	Qt, GSL, GNU Scientific library, OpenCV, CGAL, QWT, CUDA, mplayer, IPP, Intel Image Performance Primitives, blas, lapack
Functionallity:		image features, matrix algebra, projective geometry, mser, function minimization, function optimization, canny operator, harris operator, corner detection, performance evaluation, cpu usage, graphical interface
Main data-types:	matrix, vector, tensor, quaternion, image, polyline
Video sources:		webcam, camera, stream
Devices:		embedded, desktop computer, laptop, mini-laptop
Authors:		PARP research group. University of Murcia, Spain.
-->

<meta name="keywords" content="augmented reality, sfm, structure from motion, open source, gnu, lgpl, gpl, free, computer vision, image processing, robotics, programming, source, development, library, toolkit, framework, prototype, application, object oriented, c++, block programming, reusability, gui, graphical, parallel computing, high performance, GPU, prototyping, Qt, GSL, GNU Scientific library, OpenCV, CGAL, QWT, CUDA, mplayer, IPP, Intel Image Performance Primitives, blas, lapack, image features, matrix algebra, projective geometry, mser, function minimization, function optimization, canny operator, harris operator, corner detection, performance evaluation, cpu usage, graphical interface, matrix, vector, tensor, quaternion, image, polyline, webcam, camera, stream, embedded, desktop computer, laptop, mini-laptop, University of Murcia, Spain, PARP research group, vision por computador"/>
<meta http-equiv="keywords" content="augmented reality, sfm, structure from motion, open source, gnu, lgpl, gpl, free, computer vision, image processing, robotics, programming, source, development, library, toolkit, framework, prototype, application, object oriented, c++, block programming, reusability, gui, graphical, parallel computing, high performance, GPU, prototyping, Qt, GSL, GNU Scientific library, OpenCV, CGAL, QWT, CUDA, mplayer, IPP, Intel Image Performance Primitives, blas, lapack, image features, matrix algebra, projective geometry, mser, function minimization, function optimization, canny operator, harris operator, corner detection, performance evaluation, cpu usage, graphical interface, matrix, vector, tensor, quaternion, image, polyline, webcam, camera, stream, embedded, desktop computer, laptop, mini-laptop, University of Murcia, Spain, PARP research group, vision por computador"/>
<meta http-equiv="pragma" content="no-cache"/>
<meta http-equiv="title" content="QVision"/>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="tabs.css" rel="stylesheet" type="text/css" />
<link rel="shortcut icon" href="favicon.ico" />
</head><body>

<table width="100%"><tr>
	<td><a href="http://perception.inf.um.es/"><img src="parp.png" border="0" /> <big>PARP Research Group</big></a></td>
	<td align="right"><a href="http://www.um.es/"><big>Universidad de Murcia</big> <img src="um.png" border="0" /></a></td>
</tr></table>

<hr /><br />

<table width="95%" align="center"><tr><td>

<!-- Generated by Doxygen 1.6.3 -->
<script type="text/javascript"><!--
var searchBox = new SearchBox("searchBox", "search",false,'Search');
--></script>
<div class="navigation" id="top">
  <div class="tabs">
    <ul>
      <li><a href="index.html"><span>Main&nbsp;Page</span></a></li>
      <li><a href="pages.html"><span>Related&nbsp;Pages</span></a></li>
      <li><a href="modules.html"><span>Modules</span></a></li>
      <li><a href="annotated.html"><span>Classes</span></a></li>
      <li class="current"><a href="files.html"><span>Files</span></a></li>
      <li>
        <div id="MSearchBox" class="MSearchBoxInactive">
          <form id="FSearchBox" action="search.php" method="get">
            <img id="MSearchSelect" src="search/search.png" alt=""/>
            <input type="text" id="MSearchField" name="query" value="Search" size="20" accesskey="S" 
                   onfocus="searchBox.OnSearchFieldFocus(true)" 
                   onblur="searchBox.OnSearchFieldFocus(false)"/>
          </form>
        </div>
      </li>
    </ul>
  </div>
  <div class="tabs">
    <ul>
      <li><a href="files.html"><span>File&nbsp;List</span></a></li>
      <li><a href="globals.html"><span>File&nbsp;Members</span></a></li>
    </ul>
  </div>
<h1>src/qvblockprogramming/qvioblocks/qvyuv4mpeg2writerblock.cpp</h1><a href="qvyuv4mpeg2writerblock_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> *      Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012. PARP Research Group.</span>
<a name="l00003"></a>00003 <span class="comment"> *      &lt;http://perception.inf.um.es&gt;</span>
<a name="l00004"></a>00004 <span class="comment"> *      University of Murcia, Spain.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> *      This file is part of the QVision library.</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> *      QVision is free software: you can redistribute it and/or modify</span>
<a name="l00009"></a>00009 <span class="comment"> *      it under the terms of the GNU Lesser General Public License as</span>
<a name="l00010"></a>00010 <span class="comment"> *      published by the Free Software Foundation, version 3 of the License.</span>
<a name="l00011"></a>00011 <span class="comment"> *</span>
<a name="l00012"></a>00012 <span class="comment"> *      QVision is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> *      but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
<a name="l00015"></a>00015 <span class="comment"> *      GNU Lesser General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> *      You should have received a copy of the GNU Lesser General Public</span>
<a name="l00018"></a>00018 <span class="comment"> *      License along with QVision. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020 
<a name="l00024"></a>00024 
<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;QVYUV4MPEG2WriterBlock&gt;</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;<a class="code" href="qvip_2qvimageio_8h.html" title="File from the QVision library.">qvimageio.h</a>&gt;</span>
<a name="l00027"></a>00027 
<a name="l00028"></a>00028 <span class="preprocessor">#ifdef QVIPP</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#include &lt;qvipp.h&gt;</span>
<a name="l00030"></a>00030 <span class="preprocessor">#endif</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032 QVYUV4MPEG2WriterBlock::~QVYUV4MPEG2WriterBlock()
<a name="l00033"></a>00033         {
<a name="l00034"></a>00034         videoFile.close();
<a name="l00035"></a>00035         }
<a name="l00036"></a>00036 
<a name="l00037"></a>00037 QVYUV4MPEG2WriterBlock::QVYUV4MPEG2WriterBlock(QString name, <span class="keyword">const</span> QString fileName, <span class="keyword">const</span> <span class="keywordtype">int</span> fps, <span class="keyword">const</span> <span class="keywordtype">bool</span> recording): <a class="code" href="classQVProcessingBlock.html" title="Base class for Block threads.">QVProcessingBlock</a>(name),
<a name="l00038"></a>00038         initiated(false), rgbMode(true), recording(recording)
<a name="l00039"></a>00039         {
<a name="l00040"></a>00040         addProperty&lt;int&gt;(<span class="stringliteral">&quot;FPS&quot;</span>, inputFlag, fps);
<a name="l00041"></a>00041         addProperty&lt;bool&gt;(<span class="stringliteral">&quot;RealTime&quot;</span>, inputFlag, FALSE, <span class="stringliteral">&quot;If the recorder should work in real time mode&quot;</span>);
<a name="l00042"></a>00042         realTimeMode = getPropertyValue&lt;bool&gt;(<span class="stringliteral">&quot;RealTime&quot;</span>);
<a name="l00043"></a>00043 
<a name="l00044"></a>00044 <span class="preprocessor">        #ifdef QVIPP</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span>        addProperty&lt; QVImage&lt;uChar,3&gt; &gt;(<span class="stringliteral">&quot;Input image RGB&quot;</span>, inputFlag|outputFlag);
<a name="l00046"></a>00046 <span class="preprocessor">        #endif</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span>
<a name="l00048"></a>00048         addProperty&lt; QVImage&lt;uChar,1&gt; &gt;(<span class="stringliteral">&quot;Input image Y&quot;</span>, inputFlag|outputFlag);
<a name="l00049"></a>00049 
<a name="l00050"></a>00050         <a class="code" href="classQVProcessingBlock.html#a26a8c3ab6758620d7cb328f4dd60b860" title="Adds a trigger to the block.">addTrigger</a>(<span class="stringliteral">&quot;Start recording&quot;</span>);
<a name="l00051"></a>00051         <a class="code" href="classQVProcessingBlock.html#a26a8c3ab6758620d7cb328f4dd60b860" title="Adds a trigger to the block.">addTrigger</a>(<span class="stringliteral">&quot;Pause recording&quot;</span>);
<a name="l00052"></a>00052         <a class="code" href="classQVProcessingBlock.html#a26a8c3ab6758620d7cb328f4dd60b860" title="Adds a trigger to the block.">addTrigger</a>(<span class="stringliteral">&quot;Grab single frame&quot;</span>);
<a name="l00053"></a>00053 
<a name="l00054"></a>00054         addProperty&lt; QString &gt;(<span class="stringliteral">&quot;File&quot;</span>, inputFlag, fileName);
<a name="l00055"></a>00055 
<a name="l00056"></a>00056         <span class="comment">// If the camera is in real time mode, set minimum delay sleep between iterations regarding the fps.</span>
<a name="l00057"></a>00057         <span class="keywordflow">if</span> (realTimeMode)
<a name="l00058"></a>00058                 <a class="code" href="classQVProcessingBlock.html#a511e811818f28903b60631a550f86b55" title="Sets a minimum ms delay for each iteration (default is 0).">setMinimumDelay</a>((<span class="keywordtype">int</span>)(1000/(<span class="keywordtype">double</span>) getPropertyValue&lt;int&gt;(<span class="stringliteral">&quot;FPS&quot;</span>)));
<a name="l00059"></a>00059         }
<a name="l00060"></a>00060  
<a name="l00061"></a><a class="code" href="classQVYUV4MPEG2WriterBlock.html#a17239cfc004026881d091eee541ff509">00061</a> <span class="keywordtype">void</span> <a class="code" href="classQVYUV4MPEG2WriterBlock.html#a17239cfc004026881d091eee541ff509" title="Process trigger activations in the block.">QVYUV4MPEG2WriterBlock::processTrigger</a>(QString name)
<a name="l00062"></a>00062         {
<a name="l00063"></a>00063         <span class="keywordflow">if</span> (name == <span class="stringliteral">&quot;Start recording&quot;</span>)
<a name="l00064"></a>00064                 recording = <span class="keyword">true</span>;
<a name="l00065"></a>00065         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (name == <span class="stringliteral">&quot;Pause recording&quot;</span>)
<a name="l00066"></a>00066                 recording = <span class="keyword">false</span>;
<a name="l00067"></a>00067         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (name == <span class="stringliteral">&quot;Grab single frame&quot;</span> &amp;&amp; recording == <span class="keyword">false</span>)
<a name="l00068"></a>00068                 grabFrame();
<a name="l00069"></a>00069         }
<a name="l00070"></a>00070 
<a name="l00071"></a>00071 <span class="keywordtype">bool</span> QVYUV4MPEG2WriterBlock::linkUnspecifiedInputProperty(<a class="code" href="classQVPropertyContainer.html" title="Base class for dynamic property container objects.">QVPropertyContainer</a> *sourceContainer, QString sourceProperty, LinkType linkType)
<a name="l00072"></a>00072         {
<a name="l00073"></a>00073         <a class="code" href="classQVPropertyContainer.html#a71d6042e94adbb6c46814e3593973a76" title="Semantics for a link between QVPropertyContainers.">LinkType</a> actualLinkType = linkType;
<a name="l00074"></a>00074 
<a name="l00075"></a>00075         <span class="comment">// Select actual linking type, regarding if the recorder is opened in real time mode.</span>
<a name="l00076"></a>00076         <span class="keywordflow">if</span> (!realTimeMode &amp;&amp; actualLinkType == AsynchronousLink)
<a name="l00077"></a>00077                 {
<a name="l00078"></a>00078                 std::cout &lt;&lt; <span class="stringliteral">&quot;Warning @ QVYUV4MPEG2WriterBlock: tried to establish an asynchronous link to a not real time recorder.&quot;</span> &lt;&lt; std::endl;
<a name="l00079"></a>00079                 actualLinkType = SynchronousLink;
<a name="l00080"></a>00080                 }
<a name="l00081"></a>00081         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (realTimeMode &amp;&amp; actualLinkType == SynchronousLink)
<a name="l00082"></a>00082                 {
<a name="l00083"></a>00083                 std::cout &lt;&lt; <span class="stringliteral">&quot;Warning @ QVYUV4MPEG2WriterBlock: tried to establish a synchronous link to a real time recorder.&quot;</span> &lt;&lt; std::endl;
<a name="l00084"></a>00084                 actualLinkType = AsynchronousLink;
<a name="l00085"></a>00085                 }
<a name="l00086"></a>00086 
<a name="l00087"></a>00087         <span class="comment">// Link the source image property, depending on the channel number</span>
<a name="l00088"></a>00088         <span class="keywordflow">if</span> (sourceContainer-&gt;<a class="code" href="classQVPropertyContainer.html#afdd65a88f713e0031ac4847485acfce4" title="Checks if a property is of a given type.">isType</a>&lt; <a class="code" href="classQVImage.html">QVImage&lt;uChar, 1&gt;</a> &gt;(sourceProperty))
<a name="l00089"></a>00089                 {
<a name="l00090"></a>00090                 rgbMode = <span class="keyword">false</span>;
<a name="l00091"></a>00091                 <span class="keywordflow">return</span> sourceContainer-&gt;<a class="code" href="classQVPropertyContainer.html#abd2a991c0bc91cee684ff3ffc80825dd" title="Links properties among QVPropertyContainer&amp;#39;s.">linkProperty</a>(sourceProperty, <span class="keyword">this</span>, <span class="stringliteral">&quot;Input image Y&quot;</span>, linkType);
<a name="l00092"></a>00092                 }
<a name="l00093"></a>00093 <span class="preprocessor">        #ifdef QVIPP</span>
<a name="l00094"></a>00094 <span class="preprocessor"></span>        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sourceContainer-&gt;<a class="code" href="classQVPropertyContainer.html#afdd65a88f713e0031ac4847485acfce4" title="Checks if a property is of a given type.">isType</a>&lt; <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> &gt;(sourceProperty))
<a name="l00095"></a>00095                 {
<a name="l00096"></a>00096                 rgbMode = <span class="keyword">true</span>;
<a name="l00097"></a>00097                 <span class="keywordflow">return</span> sourceContainer-&gt;<a class="code" href="classQVPropertyContainer.html#abd2a991c0bc91cee684ff3ffc80825dd" title="Links properties among QVPropertyContainer&amp;#39;s.">linkProperty</a>(sourceProperty, <span class="keyword">this</span>, <span class="stringliteral">&quot;Input image RGB&quot;</span>, linkType);
<a name="l00098"></a>00098                 }
<a name="l00099"></a>00099 <span class="preprocessor">        #endif</span>
<a name="l00100"></a>00100 <span class="preprocessor"></span>
<a name="l00101"></a>00101         std::cout &lt;&lt; <span class="stringliteral">&quot;QVYUV4MPEG2WriterBlock::linkProperty(): error, can&#39;t link property &quot;</span> &lt;&lt; qPrintable(sourceProperty) &lt;&lt; <span class="stringliteral">&quot;.&quot;</span> &lt;&lt; std::endl;
<a name="l00102"></a>00102         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00103"></a>00103         }
<a name="l00104"></a>00104 
<a name="l00105"></a><a class="code" href="classQVYUV4MPEG2WriterBlock.html#a8415b935790095a9463e6d4fde1342a7">00105</a> <span class="keywordtype">void</span> <a class="code" href="classQVYUV4MPEG2WriterBlock.html#a8415b935790095a9463e6d4fde1342a7" title="Function to be defined in subclasses with processing code.">QVYUV4MPEG2WriterBlock::iterate</a>()
<a name="l00106"></a>00106         {
<a name="l00107"></a>00107         <span class="keywordflow">if</span> (!recording)
<a name="l00108"></a>00108                 <span class="keywordflow">return</span>;
<a name="l00109"></a>00109         grabFrame();
<a name="l00110"></a>00110         }
<a name="l00111"></a>00111 
<a name="l00112"></a>00112 <span class="keywordtype">void</span> QVYUV4MPEG2WriterBlock::grabFrame()
<a name="l00113"></a>00113         {
<a name="l00114"></a>00114         <span class="keywordflow">if</span> (!initiated)
<a name="l00115"></a>00115                 {
<a name="l00116"></a>00116                 <span class="keywordflow">if</span> (not rgbMode)
<a name="l00117"></a>00117                         {
<a name="l00118"></a>00118                         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 1&gt;</a> imageY = getPropertyValue&lt; QVImage&lt;uChar, 1&gt; &gt;(<span class="stringliteral">&quot;Input image Y&quot;</span>);
<a name="l00119"></a>00119                         cols = imageY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>();
<a name="l00120"></a>00120                         rows = imageY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>();
<a name="l00121"></a>00121                         }
<a name="l00122"></a>00122 <span class="preprocessor">                #ifdef QVIPP</span>
<a name="l00123"></a>00123 <span class="preprocessor"></span>                <span class="keywordflow">else</span>    {
<a name="l00124"></a>00124                         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageRGB = getPropertyValue&lt; QVImage&lt;uChar, 3&gt; &gt;(<span class="stringliteral">&quot;Input image RGB&quot;</span>);
<a name="l00125"></a>00125                         cols = imageRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>();
<a name="l00126"></a>00126                         rows = imageRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>();
<a name="l00127"></a>00127                         }
<a name="l00128"></a>00128 <span class="preprocessor">                #endif</span>
<a name="l00129"></a>00129 <span class="preprocessor"></span>
<a name="l00130"></a>00130                 <span class="keywordflow">if</span> (cols &gt; 1 &amp;&amp; rows &gt; 1)
<a name="l00131"></a>00131                         {
<a name="l00132"></a>00132                         videoFile.setFileName(getPropertyValue&lt;QString&gt;(<span class="stringliteral">&quot;File&quot;</span>));
<a name="l00133"></a>00133                         videoFile.open(QIODevice::WriteOnly|QIODevice::Truncate);
<a name="l00134"></a>00134                         <a class="code" href="group__qvip.html#ga3039166fdcc15216e5319d1c5e652c8f" title="Create a yuv4mpeg2 video file.">writeYUV4MPEG2Header</a>(videoFile, cols, rows, getPropertyValue&lt;int&gt;(<span class="stringliteral">&quot;FPS&quot;</span>));
<a name="l00135"></a>00135                         initiated = <span class="keyword">true</span>;
<a name="l00136"></a>00136                         }
<a name="l00137"></a>00137                 }
<a name="l00138"></a>00138 
<a name="l00139"></a>00139         <span class="keywordflow">if</span> (not rgbMode)
<a name="l00140"></a>00140                 {
<a name="l00141"></a>00141                 <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 1&gt;</a> imageY = getPropertyValue&lt; QVImage&lt;uChar, 1&gt; &gt;(<span class="stringliteral">&quot;Input image Y&quot;</span>);
<a name="l00142"></a>00142 
<a name="l00143"></a>00143                 <span class="keywordflow">if</span> (imageY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() &gt; cols)
<a name="l00144"></a>00144                         std::cout       &lt;&lt; <span class="stringliteral">&quot;QVYUV4MPEG2WriterBlock::grabFrame(): image has &quot;</span> &lt;&lt; imageY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()
<a name="l00145"></a>00145                                         &lt;&lt; <span class="stringliteral">&quot;, but video file is set to &quot;</span> &lt;&lt; cols &lt;&lt; <span class="stringliteral">&quot; columns.&quot;</span> &lt;&lt; std::endl;
<a name="l00146"></a>00146                 <span class="keywordflow">if</span> (imageY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() &gt; rows)
<a name="l00147"></a>00147                         std::cout       &lt;&lt; <span class="stringliteral">&quot;QVYUV4MPEG2WriterBlock::grabFrame(): image has &quot;</span> &lt;&lt; imageY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()
<a name="l00148"></a>00148                                         &lt;&lt; <span class="stringliteral">&quot;, but video file is set to &quot;</span> &lt;&lt; rows &lt;&lt; <span class="stringliteral">&quot; rows.&quot;</span> &lt;&lt; std::endl;
<a name="l00149"></a>00149 
<a name="l00150"></a>00150                 <a class="code" href="classQVImage.html">QVImage&lt;uChar, 1&gt;</a> storedImageY(cols, rows);
<a name="l00151"></a>00151 
<a name="l00152"></a>00152                 <a class="code" href="group__qvippIDEAIF.html#gae2bed87200a1f753701bf5fc1e7a476b" title="Sets pixels in the image buffer to a constant value.">Set</a>(0, storedImageY);
<a name="l00153"></a>00153 <span class="preprocessor">                #ifdef QVIPP</span>
<a name="l00154"></a>00154 <span class="preprocessor"></span>                Copy(imageY, storedImageY);
<a name="l00155"></a>00155 <span class="preprocessor">                #else</span>
<a name="l00156"></a>00156 <span class="preprocessor"></span>                storedImageY = imageY;
<a name="l00157"></a>00157 <span class="preprocessor">                #endif</span>
<a name="l00158"></a>00158 <span class="preprocessor"></span>
<a name="l00159"></a>00159                 <a class="code" href="group__qvip.html#ga8009ad640bdcbcec1c00f6a92f9aed27" title="Write YUV image frames to a yuv4mpeg2 video file.">writeYUV4MPEG2Frame</a>(videoFile, imageY);
<a name="l00160"></a>00160                 }
<a name="l00161"></a>00161 <span class="preprocessor">        #ifdef QVIPP</span>
<a name="l00162"></a>00162 <span class="preprocessor"></span>        <span class="keywordflow">else</span>    {
<a name="l00163"></a>00163                 <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageRGB = getPropertyValue&lt; QVImage&lt;uChar, 3&gt; &gt;(<span class="stringliteral">&quot;Input image RGB&quot;</span>);
<a name="l00164"></a>00164 
<a name="l00165"></a>00165                 <span class="keywordflow">if</span> (imageRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() &gt; cols)
<a name="l00166"></a>00166                         std::cout       &lt;&lt; <span class="stringliteral">&quot;QVYUV4MPEG2WriterBlock::grabFrame(): image has &quot;</span> &lt;&lt; imageRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()
<a name="l00167"></a>00167                                         &lt;&lt; <span class="stringliteral">&quot;, but video file is set to &quot;</span> &lt;&lt; cols &lt;&lt; <span class="stringliteral">&quot; columns.&quot;</span> &lt;&lt; std::endl;
<a name="l00168"></a>00168                 <span class="keywordflow">if</span> (imageRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() &gt; rows)
<a name="l00169"></a>00169                         std::cout       &lt;&lt; <span class="stringliteral">&quot;QVYUV4MPEG2WriterBlock::grabFrame(): image has &quot;</span> &lt;&lt; imageRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()
<a name="l00170"></a>00170                                         &lt;&lt; <span class="stringliteral">&quot;, but video file is set to &quot;</span> &lt;&lt; rows &lt;&lt; <span class="stringliteral">&quot; rows.&quot;</span> &lt;&lt; std::endl;
<a name="l00171"></a>00171 
<a name="l00172"></a>00172                 <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> storedImage(cols, rows);
<a name="l00173"></a>00173                 <span class="keyword">const</span> uChar zero[3] = {0,0,0};
<a name="l00174"></a>00174 
<a name="l00175"></a>00175                 <a class="code" href="group__qvippIDEAIF.html#gae2bed87200a1f753701bf5fc1e7a476b" title="Sets pixels in the image buffer to a constant value.">Set</a>(zero, storedImage);
<a name="l00176"></a>00176                 Copy(imageRGB, storedImage);
<a name="l00177"></a>00177 
<a name="l00178"></a>00178                 <a class="code" href="group__qvip.html#ga8009ad640bdcbcec1c00f6a92f9aed27" title="Write YUV image frames to a yuv4mpeg2 video file.">writeYUV4MPEG2Frame</a>(videoFile, storedImage);
<a name="l00179"></a>00179                 }
<a name="l00180"></a>00180 <span class="preprocessor">        #endif</span>
<a name="l00181"></a>00181 <span class="preprocessor"></span>
<a name="l00182"></a>00182         }
</pre></div></div>
</td></tr></table>

<br /><hr><br />
<center><a href="http://perception.inf.um.es/QVision">QVision framework</a>.
<a href="http://perception.inf.um.es">PARP research group</a>.
Copyright &copy; 2007, 2008, 2009, 2010, 2011.</center>
<br />
</body>
</html>
